442917347209 has 16 divisors (see below), whose sum is σ = 451447603200. Its totient is φ = 434482864704.

The previous prime is 442917347203. The next prime is 442917347237. The reversal of 442917347209 is 902743719244.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 442917347209 - 2³⁵ = 408557608841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442917347203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6597399 + ... + 6664195.

It is an arithmetic number, because the mean of its divisors is an integer number (28215475200).

Almost surely, 2^442917347209 is an apocalyptic number.

It is an amenable number.

442917347209 is a deficient number, since it is larger than the sum of its proper divisors (8530255991).

442917347209 is a wasteful number, since it uses less digits than its factorization.

442917347209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67512.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 442917347209 in words is "four hundred forty-two billion, nine hundred seventeen million, three hundred forty-seven thousand, two hundred nine".